Season (Adult / Immature):
National Status: Common
Local Status: Common and widespread resident.
Local Record: Grade 1 See here for explanation
Flight time: Two generations, Apr-Jun, Jul-Aug.
|Year first recorded||1904||1883||1883||1883||1976|
|Year last recorded||2015||2014||2014||2015||2014|
|Number of records||1082||1198||790||1393||301|
|Number of individuals||1016||2135||1608||2906||468|
For the county, we have a total of 4764 records from 733 sites. First recorded in 1883.
Sutton & Beaumont, 1989: Recorded fairly commonly in all five vice-counties in areas where birch is well established such as heathlands in the Vale of York. It is also the most frequent Prominent in Wharfedale (WNS).
2012 (CHF): Common and widespread with two overlapping broods. No recent changes in numbers or distribution. There can be impressive numbers in birch woodland eg 77 at North Cliffe Wood on 6.8.2010.